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POBreezejs: Perform search on field in related table
 

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  1. POBreezejs: Perform search on field in related table
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    <p>I have followed tutorials / videos showing off how to perform a live search on data coming from two entities on the northwind database running on a Microsoft backend. </p> <p>I have to develop an application that has a <code>php / mysql</code> backend so have got hold of the php producer classes to do this. I have connected to a Wordpress DB and it all seems to be working well. </p> <p>However, my problem is when I try to perform a search on a related table. I have a grid showing author's <code>displayName</code> (from the User entity), the <code>post title</code> and <code>date</code> (from Posts).</p> <pre class="lang-cs prettyprint-override"><code>&lt;input type="text" data-ng-model="searchText"/&gt; {{searchText}} &lt;table class="table table-hover"&gt; &lt;thead&gt; &lt;tr&gt; &lt;th&gt;Author &lt;/th&gt; &lt;th&gt;Date&lt;/th&gt; &lt;th&gt;Title&lt;/th&gt; &lt;/tr&gt; &lt;/thead&gt; &lt;tr ng-repeat="post in posts"&gt; &lt;td&gt;{{post.user.displayName}}&lt;/td&gt; &lt;td&gt;{{post.date}}&lt;/td&gt; &lt;td&gt;{{post.title}}&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </code></pre> <p>In the controller (actually the datacontext.js) I have the following to get the data from the server:</p> <pre class="lang-cs prettyprint-override"><code> if (searchText &amp;&amp; (searchText = searchText.trim())) { log("searching for " + searchText); var pred = breeze.Predicate .create('title', 'contains', searchText); query = query.where(pred); } else { console.log("getting all"); } return manager.executeQuery(query).then(success); </code></pre> <p>My problem is with referring to fields in the Predicate correctly. When I run the code searching for just the Posts title Entity as below it works fine.</p> <pre class="lang-cs prettyprint-override"><code>var pred = breeze.Predicate .create('title', 'contains', searchText); </code></pre> <p>As soon as I change it to the following it stops working. There are no errors in the console as well.</p> <pre class="lang-cs prettyprint-override"><code> var pred = breeze.Predicate .create('title', 'contains', searchText) .or('displayname', 'contains', searchText); </code></pre> <p>I have tried several variants of 'displayName' such as 'displayname', 'posts.user.displayname', 'user.displayname' and all those in camelCase as well.</p> <p>Can someone tell me where I am going wrong?</p>
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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